Development of the FTIR properties of nano-structure silica gel doped with different rare earth elements, prepared by sol-gel route

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• 作者：I. K. Battisha ; A. El Beyally ; S. Abd El Mongy and A. M. Nahrawi
• 关键词：XRD ; FTIR ; Sol ; gel technique ; Monolith and rare earth elements (REEs)
• 刊名：Journal of Sol-Gel Science and Technology
• 出版年：2007
• 出版时间：February, 2007
• 年：2007
• 卷：41
• 期：2
• 页码：129-137
• 全文大小：2,264 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Ceramics,Glass,Composites,Natural Materials
  Inorganic Chemistry
  Optical and Electronic Materials
  Nanotechnology
  
• 出版者：Springer Netherlands
• ISSN：1573-4846

文摘

Structural characteristics of pure silica gel (silica-xerogel, SiO₂) and silica gel doped with some rare earth elements (REEs) such as, praseodymium Pr3+, and Europium Eu3+, Erbium Er3+ and Holmium Ho3+ ions, with different concentrations ranging from 1 up to 6%, in the form of monolith materials were prepared by sol-gel technique, Using tetra-ethoxysilane as precursor materials, which are of particular interest for sol-gel integrated optics applications. Some structural features of sol-gel derived monolith are analyzed, namely the structure of nano-particle momolith samples, based on X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR). We show that the XRD spectra of α-crystobalite are obtained for the pure samples at 1100°C and even by doping with the four REEs ions.